Articles | Volume 11, issue 6
https://doi.org/10.5194/tc-11-2427-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-11-2427-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Is there 1.5-million-year-old ice near Dome C, Antarctica?
Frédéric Parrenin
CORRESPONDING AUTHOR
Univ. Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
Marie G. P. Cavitte
Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Donald D. Blankenship
Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Jérôme Chappellaz
Univ. Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
Hubertus Fischer
Climate and Environmental Physics, Physics Institute & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
Olivier Gagliardini
Univ. Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
Valérie Masson-Delmotte
Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ/IPSL – UMR8212, Gif-Sur-Yvette, France
Olivier Passalacqua
Univ. Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
Catherine Ritz
Univ. Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
Jason Roberts
Australian Antarctic Division, Kingston, 7050 Tasmania, Australia
Antarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Hobart, 7001 Tasmania, Australia
Martin J. Siegert
Grantham Institute and Department of Earth Science and Engineering, Imperial College London, London, UK
Duncan A. Young
Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Model code and software
Source code of the IsoInv model F. Parrenin and M. Cavitte https://doi.org/10.5281/zenodo.898107
Short summary
The oldest dated deep ice core drilled in Antarctica has been retrieved at EPICA Dome C (EDC), reaching ~ 800 000 years. Obtaining an older palaeoclimatic record from Antarctica is one of the greatest challenges of the ice core community. Here, we estimate the age of basal ice in the Dome C area. We find that old ice (> 1.5 Myr) likely exists in two regions a few tens of kilometres away from EDC:
Little Dome C Patchand
North Patch.
The oldest dated deep ice core drilled in Antarctica has been retrieved at EPICA Dome C (EDC),...